What are your favorite ways to pass the time during massive airport layovers when you are too exhausted to walk around? I have a 10-hour transit window coming up next week and desperately need some engaging digital entertainment recommendations. Any good suggestions that don't require downloading heavy apps?

I usually stick to web apps or deep-dive reading when stranded at gates. Last month during a brutal delay, I wanted to find a reliable source of entertainment data and stumbled upon a comprehensive hub for online casino information that kept me occupied for hours. The site breaks down platform UI and security features so cleanly that it was a fascinating read, plus it ran perfectly on choppy airport Wi-Fi without any lag.